D. All of the above
The Guadalcanal campaign lasted for months and American troops fought through swampy marshes and took heavy casualties from the Japanese, as the Japanese were very unlike other troops, in which they did not know the art of surrendering, and was forced to fight to the death for the "Rising Sun". As there were swampy marshes on the island, tropical diseases was rampant, as well as troop movements were slowed to a crawl.
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Answer:
the weather
Explanation:
the harsh weather prevents moving to the west
Answer:
Roanoke
The first attempt disappeared without a trace and the second got caught in a storm and failed as well I believe
Explanation:
I think nuclear waste remains active for thousands of years and therefore must be kept far away from society.